A service that lets an agent host web pages, share files, create short links, run a PostgreSQL database, and manage API keys or OAuth clients through one account.

Use it when an agent needs to publish a page, give someone a file link, create a short URL, operate a PostgreSQL database, or manage its own service credentials.

It removes the need to set up separate services and accounts for these common delivery, storage, database, and identity tasks.

shebang — Skill for Claude Code and Codex by New-Kringster/shebang-mcp

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add New-Kringster/shebang-mcp --skill shebang

Clone the repo

git clone --depth 1 https://github.com/New-Kringster/shebang-mcp

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/new-kringster/shebang-mcp/shebang/github.svg)](https://agentmods.dev/skills/new-kringster/shebang-mcp/shebang)

Your own site

<a href="https://agentmods.dev/skills/new-kringster/shebang-mcp/shebang"><img src="https://agentmods.dev/badge/skills/new-kringster/shebang-mcp/shebang/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/new-kringster/shebang-mcp/shebang"><img src="https://agentmods.dev/badge/skills/new-kringster/shebang-mcp/shebang.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 175 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,828 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00175	$0.02828
Opus 5.5	$0.00070	$0.01131
Sonnet 5.5	$0.00035	$0.00566
Haiku 4.5	$0.00017	$0.00283

Measured 1mo ago against content hash d408173aba2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

shebang scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/shebang/SKILL.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

shebang

shebang is one account, one API key, and one MCP server covering five things an agent commonly needs while working: hosting pages, sharing files, minting short links, running a Postgres database, and managing its own identity (API keys, OAuth clients). All of it is reachable through the shebang-mcp server's tools — no separate accounts, no separate SDKs.

Full docs, for anything this file doesn't cover in enough depth, are at https://docs.shebang.pro — including an agent-oriented index at https://docs.shebang.pro/llms.txt, and every page there fetchable as plain Markdown at <page-url>.md instead of rendered HTML.

Every tool call in this server needs an shb_… API key. If a tool call fails with something like "missing API key" or 401/invalid_api_key, run:

npx -y shebang-mcp login

This starts a device-login flow: it prints a code and a URL, tries to open a browser, and polls until a human approves it there. On approval it writes ~/.config/shebang/credentials.json (mode 0600) and every future tool call in this server (or any other harness pointed at the same machine) picks the key up automatically — log in once, not per-project. If a browser isn't available on this machine, open the printed URL from any other device and approve there; the CLI keeps polling either way.

Projects

A Project groups a key's resources — keys, databases, files, links, and pages — for dashboard organization and access control; it's unrelated to the apps/project scope list on a key (page/serve/link/base, see below). Every key has exactly one home Project, which it always reaches in full. A master key can name any of the account's other Projects (via a project argument, a slug); an app key can only reach a Project it's been explicitly granted (read or full, via project_grant_key) beyond its own home Project. Naming a Project the key can't reach fails as insufficient_scope, never a not-found error. Most agents never need to think about Projects at all — every tool defaults to the key's own home Project when the optional project argument is omitted. Each call is scoped independently: passing project on one call doesn't change what a later call defaults to. Publishing a page with project: "acme" and then calling link_list with no project still returns your home Project's links, not acme's — pass project: "acme" again on that call too.

Read the full file on GitHub · 210 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed · -6 tokens per session d408173aba2a
1mo ago Changed · +59 lines 3d86c3f10e12
2mo ago Changed · +19 lines 484993096054
2mo ago First seen · 132 lines · 181 tokens per session scan A a88384f875fc

Subscribe to this mod's changes

shebang is a skill published in the GitHub repository New-Kringster/shebang-mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 175 tokens to every session and 2,828 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Databases DevOps and cloud PostgreSQL

shebang next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
shebangNew-Kringster/shebang-mcp	Skill	0	1mo ago	MIT	A	175	Claude Code, Codex
alloydb-basicsgoogle/skills	Skill	22k	yesterday	Apache-2.0	A	72	Claude Code, Codex
postgresql-table-designwshobson/agents	Skill	42k	yesterday	MIT	A	37	Claude Code
db-repairgarrytan/gbrain	Skill	32k	yesterday	MIT	A	96	Claude Code
volcengine-rds-postgresqlbytedance/agentkit-samples	Skill	484	today	Apache-2.0	A	63	Claude Code, Codex
dsqlawslabs/agent-plugins	Skill	937	yesterday	Apache-2.0	A	246	Claude Code
analyzing-insights-across-teamsPostHog/posthog-foss	Skill	728	yesterday	MIT	A	115	Claude Code, Codex

shebang

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

shebang

Login-if-401

Projects

What this file has done since we first saw it

shebang compared with skills from other repositories